Ugah, AkobunduDike, Uzoagba, Ngozi Celestina, and Igwe Lawrence Aloh. “Nasarawa Journal of Library and Information Science (NAJLIS) Vol.3, No.1, 2019. ISSN: 2636-5774 27 Influence of Copies of Information Sources and Use of University Libraries in the South-East Zone of Nigeria”. NASARAWA JOURNAL OF LIBRARY AND INFORMATION SCIENCE (NAJLIS) 3, no. 1 (October 24, 2023): 27–36. Accessed December 14, 2025. https://najlisnsuk.ng/index.php/najis/article/view/68.